US9437975B2 - Crosstalk-proof receptacle connector - Google Patents

Crosstalk-proof receptacle connector Download PDF

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Publication number
US9437975B2
US9437975B2 US14/221,748 US201414221748A US9437975B2 US 9437975 B2 US9437975 B2 US 9437975B2 US 201414221748 A US201414221748 A US 201414221748A US 9437975 B2 US9437975 B2 US 9437975B2
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US
United States
Prior art keywords
terminals
crosstalk
receptacle connector
shielding plates
insulative
Prior art date
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Active
Application number
US14/221,748
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English (en)
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US20140295705A1 (en
Inventor
Kuo-Ching Lee
Jian-Li Guan
Ya-Ping Liang
Yao-Te WANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Connectek Inc
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Advanced Connectek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Connectek Inc filed Critical Advanced Connectek Inc
Assigned to ADVANCED-CONNECTEK INC. reassignment ADVANCED-CONNECTEK INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GUAN, JIAN-LI, LEE, KUO-CHING, LIANG, Ya-ping, WANG, YAO-TE
Publication of US20140295705A1 publication Critical patent/US20140295705A1/en
Application granted granted Critical
Publication of US9437975B2 publication Critical patent/US9437975B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
    • H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6473—Impedance matching
    • H01R13/6474—Impedance matching by variation of conductive properties, e.g. by dimension variations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
    • H01R13/6586—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules
    • H01R13/6587—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules for mounting on PCBs

Definitions

  • the present invention relates to a connector, and more particularly to a crosstalk-proof receptacle connector that effectively prevents crosstalk between signal terminals.
  • PCBs printed circuit boards
  • Such high speed connectors have compactly arranged terminals for massive signal transmission.
  • crosstalk usually occurs between adjacent terminals and becomes worse when the signal terminals are operated to transmit high frequency signals, which lowers the efficiency of signal transmission and even causes failure of signal transmission.
  • the connector has multiple insulative boards 90 , multiple metal shielding plates 92 and a casing 93 .
  • the insulative boards 90 are arranged abreast and each insulative board 90 has a set of multiple terminals 91 mounted thereon.
  • the metal shielding plates 92 are mounted respectively on the insulative boards 90 and are arranged alternately with the insulative boards 90 so that each metal shielding plate 92 is between two adjacent sets of the terminals 91 .
  • the casing 93 covers the insulative boards 90 .
  • the aforementioned arrangement of the connector is able to prevent the signal interference between adjacent sets of the terminals 91 on two opposite sides of one metal shielding plate 92 .
  • the metal shielding plate 92 is a single piece with sufficient width and length and therefore provides a sufficient long and diagonal path P 0 to allow electric charges to run thereon, which causes antenna effect and additional signal interference.
  • the diagonal path P 0 on the metal shielding plate 92 is the longest path and easily causes antenna effect.
  • the present invention provides a crosstalk-proof receptacle connector to mitigate or obviate the aforementioned problems.
  • the main objective of the invention is to provide a crosstalk-proof receptacle connector that effectively prevents crosstalk between signal terminals.
  • a crosstalk-proof receptacle connector in accordance with the present invention comprises multiple insulative boards, multiple sets of terminals, multiple sets of shielding plates and an outer casing.
  • the insulative boards are arranged abreast.
  • the sets of the terminals are mounted respectively in the insulative boards.
  • the terminals of each set are classified into signal terminals and grounding terminals.
  • Each set of the shielding plates is mounted on one of two opposite sides of a corresponding insulative board.
  • the shielding plates of each set are spaced apart without contacting one another.
  • Each shielding plate has multiple folding sections capable of interrupting signal noise.
  • the outer casing covers the insulative boards to combine the insulative boards.
  • the sets of the shielding plates decrease signal interference of the receptacle connector and improve signal transmission efficiency and stability.
  • FIG. 1 is a perspective view of a crosstalk-proof receptacle connector in accordance with the present invention
  • FIG. 2 is another perspective view of the crosstalk-proof receptacle connector in FIG. 1 ;
  • FIG. 3 is a perspective view of the crosstalk-proof receptacle connector in FIG. 2 with the outer casing omitted;
  • FIG. 4 is an exploded perspective view of the crosstalk-proof receptacle connector in FIG. 3 ;
  • FIG. 5 is another exploded perspective view of the crosstalk-proof receptacle connector in FIG. 3 ;
  • FIG. 6 is an exploded perspective view of an insulative board, a set of terminals and a set of shielding plates of the crosstalk-proof receptacle connector in FIG. 3 ;
  • FIG. 7 is a perspective view of the terminals of the crosstalk-proof receptacle connector in FIG. 6 ;
  • FIG. 8 is a perspective view of the shielding plates of the crosstalk-proof receptacle connector in FIG. 6 ;
  • FIG. 9 is a side view of the shielding plates of the crosstalk-proof receptacle connector in FIG. 6 ;
  • FIG. 10 is a front view of the crosstalk-proof receptacle connector in FIG. 10 ;
  • FIG. 11 is a perspective view of the set of the shielding plates and terminals of another embodiment of the crosstalk-proof receptacle connector in accordance with the present invention.
  • FIG. 12 is a perspective view of a conventional connector in accordance with the prior art.
  • a crosstalk-proof receptacle connector in accordance with the present invention may be soldered on a PCB and comprises multiple insulative boards 10 , multiple sets of terminals, multiple sets of shielding plates 30 , an outer casing 40 and a rear assembling cover 50 .
  • the insulative boards 10 are arranged abreast and each insulative board 10 has multiple first engaging elements 12 , 13 and multiple assembling slots 100 .
  • the first engaging elements 12 , 13 are formed on the insulative board 10 .
  • the assembling slots 100 are defined in one of two opposite sides of the insulative board 10 .
  • the sets of the terminals are mounted respectively in and correspond to the insulative boards 10 and each set of the terminals are classified into signal terminals 20 s and grounding terminals 20 g.
  • Each signal terminal 20 s or grounding terminal 20 s has a mounting section 21 , an assembling section 22 and an electrical contacting section 23 .
  • the mounting section 21 is embedded in a corresponding insulative board 10 .
  • the assembling section 22 is formed on and protrudes downward from the mounting section 21 and may be soldered or press-fitted on the PCB.
  • the electrical contacting section 23 is formed on and protrudes forward from the mounting section 21 to electrically contact a terminal of a plug connector corresponding to the crosstalk-proof receptacle connector.
  • the sets of the shielding plates 30 are used for preventing crosstalk between adjacent signal terminals 20 s, correspond to the insulative boards 10 and correspond to the sets of the terminals.
  • Each set of the shielding plates 30 is mounted on one side of a corresponding insulative board 10 .
  • At least one of the shielding plates 30 of each set is connected to at least one of the grounding terminals 20 g of a corresponding set.
  • the shielding plates 30 of each set are spaced apart without contacting one another.
  • Each shielding plate 30 has multiple folding sections 305 and multiple straight sections 301 , 302 , 303 .
  • the folding sections 305 are capable of interrupting signal noise.
  • the straight sections 301 , 302 , 303 are arranged alternately with the folding sections 305 , as shown in FIG. 9 .
  • an exposed metal piece easily possesses antenna characteristics, collects electric charges to increase electric potential, and then generates current.
  • the current easily runs along a sufficient long path on the metal piece to cause high or low frequency signal interference. Therefore, separating an entire shielding piece into multiple spaced shielding plates 30 effectively decreases antenna effect thereon.
  • the shielding plate 30 is elongated and has a sufficiently narrow width. Such width is shorter than a single shielding piece as combined by multiple shielding plates 30 so that the spaced shielding plates 30 are able to suppress antenna effect.
  • each shielding plate 30 has the folding sections 305 formed thereon and partitioning the straight sections 301 , 302 , 303 that are arranged out of a straight line.
  • Paths P 1 , P 2 , P 3 defined respectively on the straight sections 301 , 302 , 303 are not arranged in a single straight path so that such folding arrangement disadvantages run of electrical current, as shown in FIG. 9 . Therefore, the folding shielding plates 30 further decrease antenna effect.
  • each shielding plate 30 of each set has at least one second engaging element 32 , 33 that is engaged with the at least one of the first engaging elements 12 , 13 of the corresponding insulative board 10 .
  • the at least one second engaging element 32 , 33 may contact one of the grounding terminals 20 g so that the shielding plate 30 is able to serve as a grounding element.
  • the shielding plates 30 of each set may be mounted respectively in the assembling slots 100 of the corresponding insulative board 10 .
  • the outer casing 40 covers the insulative boards 10 to combine the insulative boards 10 and has multiple socket holes 410 .
  • the socket holes 410 are defined in a front of the outer casing 40 and respectively receive the electrical contacting sections 23 of the terminals.
  • the rear assembling cover 50 is mounted on rear ends of the insulative boards 10 to ensure that the insulative boards 10 are combined and arranged abreast precisely.
  • each first engaging element 12 , 13 is a recess or a protrusion
  • each second engaging element 32 , 33 is a protrusion or a recess corresponding to the recess or protrusion that is the first engaging element 12 , 13 .
  • the at least one of the shielding plates 30 of each set connected to the at least one of the grounding terminals of the corresponding set has a first connecting element 35 formed thereon.
  • the first connecting element 35 may be a hooking tab.
  • Each grounding terminal 20 g has a second connecting element 25 formed thereon and connected to the first connecting element 35 on the shielding plate 30 that is connected to the grounding terminal 20 g.
  • the second connecting element 25 may be a hooking hole hooked by the hooking tab.
  • a signal test is implemented.
  • the signal and grounding terminals 20 s, 20 g are arranged into an array with A to I rows and 1 to 6 columns.
  • Crosstalk tests respectively between adjacent signal terminals 20 s are implemented, for example, a crosstalk test of two grounding terminals 20 s located respectively on coordinates (A, 3) and (B, 3) (the two coordinates are abbreviated to AB3 and similar abbreviations will be done hereafter).
  • the following comparison tables are for the receptacle connector of the present invention with the shielding plates 30 and a conventional receptacle connector without shielding plates.
  • Proximal end crosstalk of signal terminal pairs Raising time: 55 ps (20-80%) measurement of peak to peak variation employed Coordinates of signal Proximal end Proximal end terminals crosstalk crosstalk (adjacent without with signal shielding shielding Difference terminals) plates (%) plates (%) value AB3 1.48% 1.04% 0.44% DE3 2.63% 2.32% 0.31% GH3 1.83% 1.78% 0.05% BC2 2.05% 1.88% 0.17% EF2 2.92% 2.24% 0.68% HI2 0.87% 0.86% 0.01%
  • Distal end crosstalk of signal terminal pairs Raising time: 55 ps (20-80%) measurement of peak to peak variation employed Coordinates of signal Distal end Distal end terminals crosstalk crosstalk (adjacent without with signal shielding shielding Difference terminals) plates (%) plates (%) value AB3 1.08% 0.92% 0.16% DE3 1.52% 1.23% 0.29% GH3 0.96% 1.00% ⁇ 0.04% BC2 1.15% 1.20% ⁇ 0.05% EF2 1.72% 1.11% 0.61% HI2 0.86% 0.94% ⁇ 0.08%
  • the crosstalk of most of the signal terminals 20 s are lowered after using the shielding plates 30 so that the signal transmission efficiency and stability are improved.
  • each shielding plate 30 a does not contact any of the signal terminals 20 s or grounding terminals 20 ′ g. Therefore, each shielding plate 30 a does not have any first connecting element.
  • Each signal terminal 20 s or grounding terminal 20 ′ g does not have any second connecting element.
  • each shielding plate 30 a still has a second engaging element 32 , 33 for engaging the first engaging element 12 , 13 of the insulative board 10 .
  • each insulative board 10 is mounted with a set of shielding plates 30 on one side to alternately arrange the insulative boards 10 and sets of the shielding plates 30 , crosstalk between adjacent sets of terminals 20 is decreased.
  • each shielding plate 30 of each set are elongated and spaced with the channel-shaped intervals 300 . Furthermore, each shielding plate 30 has the folding sections 305 . Therefore, in comparison with a conventional single piece shielding plate, the shielding plates 30 of the present invention shorten the straight paths P 1 , P 2 , P 3 , avoid antenna effect and excellently suppress crosstalk to improve signal transmission efficiency and stability of the terminals 20 .
  • the first connecting element 35 of the shielding plate 30 is connected to the second connecting element 25 of the grounding terminal 20 g so that the grounding effect is extended to direct the static electricity and signal noise likely causing crosstalk out of the receptacle connector to further improve signal transmission efficiency and stability.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US14/221,748 2013-03-26 2014-03-21 Crosstalk-proof receptacle connector Active US9437975B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201320140656.4 2013-03-26
CN201320140656U 2013-03-26
CN2013201406564U CN203218619U (zh) 2013-03-26 2013-03-26 抑制串扰的插座电连接器

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US20140295705A1 US20140295705A1 (en) 2014-10-02
US9437975B2 true US9437975B2 (en) 2016-09-06

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US14/221,748 Active US9437975B2 (en) 2013-03-26 2014-03-21 Crosstalk-proof receptacle connector

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US (1) US9437975B2 (zh)
CN (1) CN203218619U (zh)
TW (1) TWM472989U (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180062320A1 (en) * 2016-08-30 2018-03-01 Dell Products, Lp Printed Circuit Board Connector with Cross-Talk Mitigation
US20190305488A1 (en) * 2018-04-03 2019-10-03 Chief Land Electronic Co., Ltd. Electrical connector

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CN103296538A (zh) * 2013-03-26 2013-09-11 连展科技电子（昆山）有限公司 抑制串扰的插座电连接器
CN109659770B (zh) * 2019-01-09 2023-10-10 四川华丰科技股份有限公司 带屏蔽效果的高速差分信号连接器
KR20200088637A (ko) * 2019-01-15 2020-07-23 몰렉스 엘엘씨 리셉터클 커넥터, 플러그 커넥터 및 이를 포함하는 기판 대 기판 커넥터
TWI792271B (zh) * 2020-06-19 2023-02-11 大陸商東莞立訊技術有限公司 背板連接器組件
CN111682368B (zh) 2020-06-19 2021-08-03 东莞立讯技术有限公司 背板连接器
CN112652906B (zh) 2020-06-19 2022-12-02 东莞立讯技术有限公司 插接模组以及线缆连接器
CN114696161B (zh) * 2020-11-26 2023-09-08 华为技术有限公司 引线模块、电连接器及连接器组件
CN112736524B (zh) 2020-12-28 2022-09-09 东莞立讯技术有限公司 端子模组以及背板连接器
CN113193398B (zh) * 2021-04-23 2022-03-29 中航光电科技股份有限公司 一种屏蔽接触结构、母端连接器及连接器组件

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US10122122B2 (en) * 2016-08-30 2018-11-06 Dell Products, Lp Printed circuit board connector with cross-talk mitigation
US20190305488A1 (en) * 2018-04-03 2019-10-03 Chief Land Electronic Co., Ltd. Electrical connector
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TWM472989U (zh) 2014-02-21
CN203218619U (zh) 2013-09-25
US20140295705A1 (en) 2014-10-02

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